CAL20.png



CAL_ATOM.png

http://www.worldbookonline.com/student/extmedia?id=ar087400&st=calcium&em=lr005735

0Ca 96.941% One of the calcium’s isotopes is 40Ca is __stable__ with 20 __neutrons__.
http://www.ptable.com
Calcium
in
callem
two
row four.


http://periodic.lanl.gov/default.htm
shd.pngSir. Humphrry Davy discovered the calcium element in 1808.


http://www.worldbookonline.com/student/article?id=ar087400&st=calcium
http://www.shiga-med.ac.jp/~koyama/pain/davy.jpg

cal_table.png
cal.png


http://periodictable.com/Samples/020.6/s9s.JPG

tan.png

One of the things calcium is used for is tanning leather.

Did you know? Calcium is essential to all living things! So drink all your milk!